Electric current measuring arrangement and battery system

    公开(公告)号:US11579202B2

    公开(公告)日:2023-02-14

    申请号:US17342936

    申请日:2021-06-09

    Abstract: An electric current measuring arrangement includes: a first control unit including a first microcontroller; a second control unit including: a second microcontroller; an amplifier electrically interconnected between the second microcontroller and terminals of a shunt resistor for current measurement; and a node interconnected between one of the terminals of the shunt resistor and the amplifier; a communication line communicatively connecting the first control unit and the second control unit. The first microcontroller is configured to generate a test pattern signal, and to transmit the test pattern signal to the second control unit through the communication line, the second control unit is configured to transmit the test pattern signal to the node, the second microcontroller is configured to receive a measuring signal through the amplifier, and the first microcontroller is configured to receive the measuring signal, compare the measuring signal with the test pattern signal, and verify the current measurement.

    Battery system
    5.
    发明授权

    公开(公告)号:US12115879B2

    公开(公告)日:2024-10-15

    申请号:US17166116

    申请日:2021-02-03

    CPC classification number: B60L58/10 B60L58/22 H02J7/0014 H02J7/0047

    Abstract: A battery system for an electric vehicle includes a battery module having battery cells and a controller module connected to the battery cells, the controller module being configured to measure voltage values, current values, and temperature values of at least one of the battery cells, and a controller unit connected to the battery module and configured to communicate with the controller module via a data line, the controller unit being configured to determine an inherent physical property of the at least one of the battery cells based on the measured values of the controller module, to compare the determined inherent physical property with a reference value for the inherent physical property, and to perform an authentication of the at least one of the battery cells based on the comparison.

    Battery pack
    7.
    发明授权

    公开(公告)号:US11411255B2

    公开(公告)日:2022-08-09

    申请号:US16347540

    申请日:2017-09-15

    Abstract: A battery pack may include: a battery configured to include a plurality of cells; a cell balancing circuit configured to include a discharge circuit for each of the cells; a controller configured to output a first complete discharge command signal based on a control signal inputted from the outside; a mechanical switch configured to output a second complete discharge signal by mechanical manipulation; and a cell balancing controller configured to control the cell balancing circuit such that complete discharge of each cell is performed through the discharge circuits when the first complete discharge signal and the second complete discharge signal are received.

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